Heel-trimming machine



NrTED STATES PATENT arrest JAMES H. BUSELL, OF BOSTON, MASSACHUSETTS.

HEEL-TRIMMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 270,632, dated January16, 1883.

Application filed November 20,1882. (No model.)

To all whom it may concern Be it known that I, JAMES H. BUSELL, ofBoston, in the county of Sutfolk and State of h'I-assachusetts, haveinvented certain new and useful Improvements in Heel-Trimming Machines,of which the following, taken in connection with the accompanyingdrawings, is a specification.

My invention relates to that class of heeltrimming machines in whichrotary cutters are used, and is especially adapted to use in trimmingthat class of heels called French heels, or those in which the heel-seatprojects beyond the tread-surface of the heel more at the rear than atthe sides. In trimming such heels with a rotary cutter having itsperiphery molded to the counterpart or reverse of the curve that it isdesired to give to the heel from the treadsurface to the heel-seat, itbecomes necessary to present theedge of the heel to the action of thecutter with the treadsurface of the heel at a varying angle to the axisof the cutter, and as a consequence the length of the cutter must beconsiderably greater than the perpendicular thickness of the heel, andas the tread-surface of the heel must always bear against the treadguiding flange or rest and maintain the same relative position relativeto the lengthof the cutter, it follows that when trimming the sides ofthe heel'near its forward end, at which time the tread-surface of theheel is held more nearly 7 at right angles to the axis of the cutterthan when trimming around the rear portion of the heel, the periphery ofthe cutter will extend beyond the heel-seat of the heel and overlap theupper.

. It has been found in practice that it is not safe to trim heels of thedescription described, after they are attached to the shoe, by means ofa revolving cutter, in the manner described, on account of the danger ofcutting the upper.

To obviate this difficulty is the objectof my invention audit consists,first, in the combi-' nation, in a heel-trimming machine, of a r0- tarycutter having its periphery molded to the counterpart of the curve to begiven to the rear of the heel, and a guard arranged to partially inclosethe smaller end of said outter and to yield in a direction oblique tothe axis of said cutter, as will be described.

It further consists in certain combinations and arrangements of'parts,which will be readily understood by reference to the description of thedrawings and to-the claims to be hereinafter given. v

Figure 1 of the drawings is a plan of a machine embodying my invention.Fig. 2 is a front elevation of the same, and Fig. 3 is a section throughthe rotary cutter and the guard on line 00 00 on Fig. 2.

A is the frame or head of the machine, which may be secured upon acolumn or a bench, as may be desired, and having mounted in suitablebearings thereon the shaft B, provided with the pulley O, hand-wheel D,and the cutter E, all constructed in a well-known manner.

F is a conical or beveled flange, secured to the larger. end of thecutter E, and serving to prevent the action of the cutter upon the heeljamming the corner ot'the tread-lift outward, and at the same time, byvirtue of its conical 0r beveled shape, permits the angle of the heel Gis a guard made in the form of a conical I dishor cup, with aboutone-half of its conical walls cutaway upon one side, and arranged topartially inclose and lie close to the tapering smaller end of thecutter E, as shown in Fig. 3. This guard G is mounted upon the stud H,which is pivoted and clamped to the rod I at a, with its axis in linewith the axis of the cutter E, as shown. The rod I is mounted inbearings 12 b on the arm J, which is pivoted and clamped by the screw 0to the rodK, which is mounted, and adjustable endwise, in a bearing madetransversely through the rod L, adjustably mounted in the socket d onthe arm M, bolted to an ear cast upon and projecting from the back sideof the head A, but notshown in the drawings. The rods K and L haveformed therein the longitudinal grooves e andf, respectively, with whichthe inner ends of the set-screws g and h respectively engage to preventsaid rods from turning about their axes in their bearings. The socketsin which the rods K and L are mounted are cut open upon one side, andare provided respectively with the clamping-screws t and j. The rod Iand guard G are pressed toward the cutter E by the spring k, coiledabout said rod between I its rear bearing, b, and the collar 1, asshown. The motion of said rod I and guard Gr toward the cutter islimited by the collar m coming in contact with the bearing 1), as shown.

M is aheel rest orsupport, adjustably mounted in a socket in the rod N,also adjustably fitted to the socket cast upon the under side of the armM, this rest and the means of adjusting it being substantially the sameas described in the Patent No. 261,094, granted A. J. Johnson, July ll,1882.

The rod 1 is adjusted to such an angle relative to the axis of thecutter that when it is moved away from the cutter the edge n of theguard G at center or extremefront thereof will move in a line parallel,or nearly so, to the taper of the small or left-hand end of the cutter.The angle of the rod I may be adj nsted to fit different cutters byadjusting the rods K and L endwise in their hearing and swinging the rodI and arm J about their fulcrumpins a and 0, respectively. A cord, 0, isconnected to the rod I at p, and passes through an eye or hole in thearm J, and is connected at its lower end to a treadle mounted upon thefloor, but not shown, by which the position of the guard Gr relative tothe tread-rest F may be controlled.

The cutter E is made up of a series of disks or plates secured upon thecentral core, q, by means of the screw 1', in a well-known manner.

The operation of my invention is as follows: The operator places breastof the heel upon the rest M, with the tread-surface of the heel in linewith the angle formed by the conical l'acer of the tread-guard F withthe periphery of the cutter E, and the corner or edge at of the guard Grbearing in the rand of the shoe, and gradually rotates the heel bymoving the toe of the boot or shoe toward him and gradually swinging thetoe toward the right, at the same time moving the guard G to the left toexpose a greater length of the cutter E to act upon the heel as itapproaches the extreme rear of the heel, and from that point graduallymoving the toe of the boot or shoe toward the left and allowing theguardGto move toward the right, so as to cover all of the upper in theimmediatevvieinity ot' the heel-seat, and thus protect it from theaction of the cutter.

The position of the guard G may be controlled by the operators footacting through the medium of the cord 0 and the treadle connectedtherewith, but not shown, by his thumb pressing against the screw-heada, or by the pressure of the heel-rand thereon as the heel is rotated,and the angle of its tread-surface to the axis of the cutter is varied.

The rod I is prevented from turning in its bearings b and I) by theguide-bar s, which moves endwise through a slot formed in the under sideof the bearing 1), as shown in Fig. 2.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-- 1. In a heel-trimming machine, the combination of arotary cutter having its periphery molded longitudinally to the desiredcurve to be given to the rear of the heel, and a guard arranged topartially inclose the smaller end of said cutter and to yield in adirection oblique to the axis of said cutter, as will be described.

2. The combination of the cutter E, the conical 01'' beveled tread guardor rest F, and the guard Gr, arranged to yield in aline oblique to theaxis of the cutter E, substantially as and for the purposes described.

3. The combination of the cutter E,the conical tread guard or rest F,the heel-rest M, and the guard G, arranged to yield in a directionoblique to the axis of the cutter, substan tially as described.

4. In combination with a rotary cutter having its periphery moldedlongitudinally to the desired vertical curve to be given to the rear ofthe heel, the guard G, red I, arm J,rods K and L, arm M, clamping-screws0,1', and j, and the spring is, all constructed, arranged, and adaptedto operate substantially as and for the purposes described.

5. The combination of the cutter E, the guard Gr, rod I, pivoted arm J,spring k, and the cord 0, all constructed and arranged to operatesubstantially as described.

In testimony whereof I have signed my name to this specification,in thepresence of two subscribing witnesses, on this 18th dayot' November, A.D. 1882.

JAMES H. BUSELL.

Vitnesses:

E. A. IIEMMENW'AY, \V ALTER E. LOMBARD.

